Stock-Based Compensation (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
		Jan. 07, 2022	Feb. 28, 2023	Jan. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2022		Dec. 31, 2021	Jan. 01, 2023	Dec. 31, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Proceeds from common stock											$ 55,016
Employee Stock Purchase Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock capital shares reserved for future issuance									1,750,000
Shares available for issue									931,841
Number of common stock purchased					194,240	203,480	191,698	31,112
Proceeds from common stock					$ 218	$ 304	$ 140	$ 131
Employee Stock Purchase Plan [Member] | Lucid Diagnostics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of common stock purchased							84,030
Proceeds from common stock							$ 109
Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share- based compensation, weighted average exercise price			$ 1.31	$ 1.31
Subsequent Event [Member] | Employee Stock Purchase Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares available for issue				250,000
2014 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock capital shares reserved for future issuance									16,352,807
Shares available for issue									2,563,843
Number of stock options outstanding									600,854
Weighted average fair value of stock options									$ 1.10		$ 3.46
Number of shares available for issue									500,854		500,854
2014 Equity Plan [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for issue												4,700,000
Number of stock options outstanding				7,070,000
Share- based compensation, weighted average exercise price				$ 0.48
2018 Stock Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock capital shares reserved for future issuance									9,144,000
Shares available for issue									3,821,139
Number of stock options outstanding									423,300
Vest - restricted stock awards, shares									50,000
2018 Stock Plan [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for issue												2,500,000
2018 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock options outstanding									2,565,377	[1]	1,419,242		1,399,242
Share based compensation arrangements by share based payment award, options, grants in period, weighted average exercise price	[2]								$ 3.68		$ 9.08
Weighted average fair value of stock options									$ 2.30		$ 5.13
2018 Equity Plan [Member] | Lucid Diagnostics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of restricted stock, granted									50,000		50,000
2018 Equity Plan [Member] | Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of restricted stock, granted		320,000
Vesting period description		2018 Equity Plan, with such restricted stock awards having a single vesting date on January 7, 2025
Fair value of restricted stock granted		$ 1,400
2018 Equity Plan [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation arrangements by share based payment award, options, grants in period, weighted average exercise price			$ 2,672,500	$ 2,672,500
Employee Stock Purchase Plan [Member] | Lucid Diagnostics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock capital shares reserved for future issuance									500,000
Shares available for issue									415,970
Employee Stock Purchase Plan [Member] | Subsequent Event [Member] | Lucid Diagnostics Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares available for issue				500,000

[1] The outstanding stock options presented in the table above, are inclusive of 423,300 stock options granted outside the Lucid Diagnostics Inc. 2018 Equity Plan, as of December 31, 2022 and December 31, 2021.

[2] Stock options granted under the Lucid Diagnostics Inc. 2018 Equity Plan and those granted outside such plan generally vest ratably over twelve quarters, with the vesting commencing with the grant date quarter-end, and have a ten-year contractual term from date-of-grant.